Description Durable, waterproof, UV-resistant polyester labels provide strong protection from harsh environments and conditions -- resisting moisture, scuffing, tearing and smudging. Ultrahold® Adhesive sticks to more tough surfaces: metal, plastic, glass and more, ensuring your label doesn't fall off your package. TrueBlock® Technology is guaranteed to completely cover everything underneath your label, so you can re-use mailing tubes, boxes and more! Easy to customize with free templates and designs from Avery® Design & Print. 8 1/2" x 11" sheets for laser printers.